I think PTC tried to do this for us. If you notice that when you create a new part in 2000i2 it already has datums and layers. Although there is a 100% chance that these are not the layers you are used to using, they are provided. I found this frustrating also.
I have not tried to, again...
Does anyone have a link or document that explains harmonics in such a way that it is presentable to a non- or at best semi-technical audience?
I have to do a presentation on this topic and I am looking for resources. Thanks for any info provided.
tclere -
My post was intended to be funny, not serious. Please do not be offended by it.
DGP -
My experience has been with Pro/Engineer. I have used it since Release 18 and now I use 2000i2. I find it extremely powerful, stable and able to handle very large assemblies (300+ parts).
This...
The standard to reference is UL 94. This deals with the flammability of materials. V0 is a mediocre rating.
And as tcampbel stated, check it out at www.ul.com.
Keep in mind that IPC dictates standard practices. This is not to say that you will not have situations that will not meet this standard to the letter. The only caution is that you are confident that the board can be manufactured (in other words, the manufacturing facility can make it and make...
I have been using 2000i for several months. It is much better than 19 or 20. They have added lots of extremely useful shortcuts to the model tree and other locations.<br>
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I strongly recommend using this version.<br>
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Also, in regard to upgrading from older versions: the statements...
Dry contacts simply refer to a relay (or other device) contact that does not supply voltage. It is simply a switch. On the other hand, a wet contact is a contact that does supply voltage/current (has a source already connected).<br>
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Dry contacts are generally more versatile but it does...
One aspect of this type of problem that is often overlooked is the amount of current available from your source. For instance, if you are close to a sub-station, you have more fault current available than if you were 20 miles away. Another example, would be to compare the current that you can...
I would also like to submit my appreciation for the PTC training. It is expensive, but you will know how to use the program when the training is complete. The instructors have been helpful to me when I have had a specific question to ask. Take a look at PTC's website. They have many online...
A company called Technical Training Group (800-874-8883) offers a training course on this topic (Short Circuit Analysis). They have created a quick and easy method on how to do it. You may be able to call and buy the manual if you cannot take the course. The calculations are simple and...
I agree with DareDevil. Just keep an eye on the operating voltage of your circuit (do not set the clamp voltage to low). A few zeners, transzorbs or MOVs in parallel with some caps to filter the circuit should do the trick.
The relay suggested is a good idea. Remember you are controlling AC with the output of your transistor. To get around the idea of a common ground, use an opto isolator or simply power the mechanical relay with the microcontroller output. Either of these methods will eliminate the need for a...
